Lamp



FIG. 1 is a top plan view of the lamp showing my new design;

FIG. 2 is a front elevational view thereof, the rear being a mirror image;

FIG. 3 is a side elevational view thereof, the opposite side being a mirror image; and

FIG. 4 is a cross-sectional view taken horizontally through the four vertical supports of the lamp. 

The ornamental design for a lamp, as shown and described. 